Predictive Management Algorithm for Controlling PV-Battery Off-Grid Energy System

This paper introduces an energy management strategy for an off-grid hybrid energy system. The hybrid system consists of a photovoltaic (PV) module, a LiFePO4 battery pack coupled with a Battery Management System (BMS), a hybrid solar inverter, and a load management control unit. A Long Short-Term Me...

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Main Authors: Tareq Alnejaili, Sami Labdai, Larbi Chrifi-Alaoui
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/19/6427
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author Tareq Alnejaili
Sami Labdai
Larbi Chrifi-Alaoui
author_facet Tareq Alnejaili
Sami Labdai
Larbi Chrifi-Alaoui
author_sort Tareq Alnejaili
collection DOAJ
description This paper introduces an energy management strategy for an off-grid hybrid energy system. The hybrid system consists of a photovoltaic (PV) module, a LiFePO4 battery pack coupled with a Battery Management System (BMS), a hybrid solar inverter, and a load management control unit. A Long Short-Term Memory network (LSTM)-based forecasting strategy is implemented to predict the available PV and battery power. The learning data are extracted from an African country with a tropical climate, which is very suitable for PV power applications. Using LSTM as a prediction method significantly increases the efficiency of the forecasting. The main objective of the proposed strategy is to control the different loads according to the forecasted energy availability of the system and the forecasted battery state of charge (SOC). The proposed management algorithm and the system are tested using Matlab/Simulink software. A comparative study demonstrates that the reduction in the energy deficit of the system is approximately 53% compared to the system without load management. In addition to this, the reliability of the system is improved as the loss of power supply probability (LPSP) decreases from 5% to 3%.
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spelling doaj.art-331d24dab15644d384ab97426b4488202023-11-22T16:45:56ZengMDPI AGSensors1424-82202021-09-012119642710.3390/s21196427Predictive Management Algorithm for Controlling PV-Battery Off-Grid Energy SystemTareq Alnejaili0Sami Labdai1Larbi Chrifi-Alaoui2Innovative Technologies Laboratory (LTI UR 3899), University of Picardie Jules Verne, 13 av. F. Mitterrand, 02880 Cuffies, FranceInnovative Technologies Laboratory (LTI UR 3899), University of Picardie Jules Verne, 13 av. F. Mitterrand, 02880 Cuffies, FranceInnovative Technologies Laboratory (LTI UR 3899), University of Picardie Jules Verne, 13 av. F. Mitterrand, 02880 Cuffies, FranceThis paper introduces an energy management strategy for an off-grid hybrid energy system. The hybrid system consists of a photovoltaic (PV) module, a LiFePO4 battery pack coupled with a Battery Management System (BMS), a hybrid solar inverter, and a load management control unit. A Long Short-Term Memory network (LSTM)-based forecasting strategy is implemented to predict the available PV and battery power. The learning data are extracted from an African country with a tropical climate, which is very suitable for PV power applications. Using LSTM as a prediction method significantly increases the efficiency of the forecasting. The main objective of the proposed strategy is to control the different loads according to the forecasted energy availability of the system and the forecasted battery state of charge (SOC). The proposed management algorithm and the system are tested using Matlab/Simulink software. A comparative study demonstrates that the reduction in the energy deficit of the system is approximately 53% compared to the system without load management. In addition to this, the reliability of the system is improved as the loss of power supply probability (LPSP) decreases from 5% to 3%.https://www.mdpi.com/1424-8220/21/19/6427energy managementforecastingrenewable energyPV systemload side managementhybrid energy system
spellingShingle Tareq Alnejaili
Sami Labdai
Larbi Chrifi-Alaoui
Predictive Management Algorithm for Controlling PV-Battery Off-Grid Energy System
Sensors
energy management
forecasting
renewable energy
PV system
load side management
hybrid energy system
title Predictive Management Algorithm for Controlling PV-Battery Off-Grid Energy System
title_full Predictive Management Algorithm for Controlling PV-Battery Off-Grid Energy System
title_fullStr Predictive Management Algorithm for Controlling PV-Battery Off-Grid Energy System
title_full_unstemmed Predictive Management Algorithm for Controlling PV-Battery Off-Grid Energy System
title_short Predictive Management Algorithm for Controlling PV-Battery Off-Grid Energy System
title_sort predictive management algorithm for controlling pv battery off grid energy system
topic energy management
forecasting
renewable energy
PV system
load side management
hybrid energy system
url https://www.mdpi.com/1424-8220/21/19/6427
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AT larbichrifialaoui predictivemanagementalgorithmforcontrollingpvbatteryoffgridenergysystem